Answer:
Yes, multiplication and division are inverse. yes, for the inverse equation. Yes, addition and subtraction are inverse. yes, for the inverse equation.
Step-by-step explanation:
EXAMPLES.
E.g 21 = 3x division
3x x = 21 inverse
E.g 5+x =8 addition
5=8-x inverse.
Thank you! :)
Answer should be the second one, B
Answer:
Heating and cooling costs might vary considerably.
Given:
2 walls - 14ft by 9ft
2 walls - 20ft by 9ft
Wall 1 & 2 = 14ft * 9ft = 126 ft² x 2 = 252 ft²
Wall 3 & 4 = 20ft * 9ft = 180 ft² x 2 = 360 ft²
Total area = 252 ft² + 360 ft² = 612 ft²
Cost of 1 single roll: $20
612 ft² ÷ 18 ft² = 34 rolls * $20 = $680
Cost of double roll: $40
612 ft² ÷ 54 ft² = 11.33 rolls ⇒ 12 double rolls
12 * $40 = $480
If Christopher opts for 1 single roll of wallpaper, he'll spend $680.
If he opts for double roll of wallpaper, he'll spend $480.
Double roll of wallpaper is the cheaper option. He'll save $200 if he'll buy the double roll of wallpaper.
Answer:
1. pie chart
2. bar graph
3. they both show the amount of kids with the same letters compared to the others.
if you still don't understand something please ask. always happy to help :)
Step-by-step explanation:
